Merry-go-round



' Patented Dec.. 13, 1927.

Unseren" sterne! l 'laaste-aa natanti 1am-ea.

"MEnRY-eofnounn.

. Application mea February, 24,31927mlseria1 'Na-17eme.,

- This invention relates vto improvements v*in merry-go-rounds.

"In the accompanying drawingswhich serve for illustratingthe inventionin one vform: l

VAFig. 1 fis a view in sidefelevatiomo-'the merryfgoeround; lig,2 is asectional view in elevation; Y

l AFigs. 34 :are sectional and plan VYviews 1 0 -respectively of one ofythe bearing members; `'Figs 5-`6 are sectional and Yplan views frespectively of another bearingA member;

Fig. 7 is a plan view of a'tliird bearing member; V Fig.V 8 is a vdetailview of a seatforfthe device. y

vThe device, as'here shown, is offthecombi'nation. merry-gefroundand`teeter board type. 'Y The' objects attained inthe invention consist `ina device of the* character Vdescribed in which the leverage of 'theteeter' board in .operation is utilized foreecting the rotatablelmovement of the device; simplicity and durability 'of construction,`and l`ease .and Y smoothness'of operation.

The construction `consists vof a jr'base 1 adapted to be secured to a.floor oranysuitablei'sub-base' by bolts 2;"a column"3,^here 3o base 1,and threaded 'at its upperend lfor receiving the internally threaded endyof a concave bearing member 4. Y

'Supported in member 4 is'an inverted convex `bearing'member 5, nbest`shown in `detail Figs.' 3 4. The. parts 4 5 are assembled one with theother vbyv meansoi a stem 6 securedjat its upper endv in part 5l and"extended through an' aperture in the bottom of part 4, the lower4 endofthe stem being threaded for a nut 7 which together with 'a 1 key 8 onstem G coacting with a corresponding slot inA theaperture of part 4, actto hold f parts 4-5 in fixed relation one with 'the' other.

Parts 4 5 are'spaced one from the other 4as illustrated in Fig. 2,v by a.metal pad 9 which is centered and rotatable on stemdG,

the spacing between of the parts'being the.

required extenty for i providing suitable ybearing surfaces between theparts for a convexeconcave .bearing member 10, best shown in detail Fig.7, which is provided witha slot shownas a section lot pipethreaded'finto parts is thusminimized and an 1'1aforfreceiving the padkyithefvgslotfj being l flonger than the padto` provide :clearanceforvthe :teetering imovement ffof the vboard '12 `:which is :securedltopartvlOv-'by bolts 13.*"

A.Y series of conical sh'alpedz;radiallyeX-'V `.tended cams arevformedinfthe-fupper face fot part? 5, Vthere being five double faced cams .14'inilthe series. member .-15,1seeured1 :in

utheuppenportion of part 10 byfbolts. f16,r'=is provided withft-wodiametric'a'lly opposite, radially VeXtendecLinvertedy cams 1'? whichcoact ywithcams {i4-for imparting a stepv-by-'stepro- -tatable movement,altern'ated'with ate'etering movement, :to the board 12 when -thefdeviceis inoperation. The arrangement kikof cams 14-17 relative to each otheris such that one of the cams 17 will pass over' a cam 14 as the othercam V17v moves downwardlybetweenadjacent cams'14. The coacting-camsurfaces on the; downward teetering `movevment act under the leverage ofthe -teeter board to 'impart the rotatable movement to the device ineither-direction as may be^de i termined by the operators. v

As herefshowmthe lteeter board is in two sections, being 'hingedonepiece to the other asindicated at 18 to reduce Ythe length-of the lboard for convenience in hanclliiag AV singlel ball bearing `19fissupported'in the apex o-part'ypart 15 Vbeing-provided withan adjustablethreaded bearing-stud 2O whi'chserves as the opposite bearing1member forthe-ball 19. VFriction betweenpthe easy fstep=by step movement iseffected.

`vThe f'merry-'go-round may yreadily vbevadapted"'for.more than twopersons vby providing suitable seats on the teeter board as illustratedin Fig. 8 inlwhi'ch a rocking sea for two or moreA persons is shown. f'Yf-Having described my invention, I claim: `1. A merry-go-rundVcomprising a` base` a concave bearing member Lsupported on the` base, aconvex bearing member supported in ,the concave member, a part'interposed between said members for spacing one from 'the other.y aconveXo-concave bearing memberoperable between thetirst named bearingmembers, and a seat board supported on the last named member.

aconcave bearing member supported onV the 2. Amerryp-go-rouiidcomprising a base,r

base, a convex bearing member supported in theconcave. member, a partinterposed between'said members forspacing onefrom the other, aconvexoLconcave bearing member operable rotatablyr between the firstnamed bearing members, and a seat board supportedA on saidlast namedmember.

Y 3. A merry-go-round comprising abase, a concave bearing membersupported on said base, a convex bearing member supported in theconcavity of the first named member,

y a part interposed between said members for spacing oneffrom the other,a 'convexo-convcave bearing member having rotatable and rocking movementbetween'the `:first named bearing members, and a sea-t board supportedYon said last named member; Y

4. Avmerry-goround comprising a base,

,a concave bearingmember supported on the ibase, a convex bearing membersupported in the concave member, a part interposed; between saidlmembers forspacing one from the other, a convexo-concave bearing memberhaving coincident rotatable and rocking movement-supported between thebearing surfaces of the first named members, and a seatboard supportedon said` last named member. 5. A merry-goround comprising a base,concave bearing member supported on said fbase, a convex bearingv membersupported inthe concave member, Va part operable rotatably between andacting` to space the bearing surfacesof said members one from .theother, a convexoconcave bearing member having a rotatable rockingmovement ,between said first named bearing members Vand having a slotco'actmg with said part last named bearing member, a series of camsurfaces arranged inthe upper face of the convex bearing member, and amember supported in the convexe-concave member hav mg cam surfacesadapted to coactwith said series of camsurfaces forv effectingystep-,by-V step teetering movementcomcldent with ro-y tatable movementof said board.

7. A merry-go-round comprising a base, a concave bearingmembei'supported on said base, a convex bearing member supported in theconcave member, a part interposed between said members for spacing onefrom the other, a vconvexo-concave bearing memyber operable between thefirst named bearing members, a seat supported on the last named member,a series of cam surfaces arranged in the upper face of the convex bear-fY .Y ing step-by-step teetering movement coincident with rotatablemovement of said seat. Y

ing members, aseat board supported on thek last named member, a seriesof cam surf-aces n arranged'in the upper face of said convex member, anda member supported on the convexo-concave member having diametricallyopposite cam surfaces arranged to coact alternately with said series ofcam surfaces for .eecting step-by-step `teetering move-v ment coincidentwith` rotatable lmovement of the seat board. -5

9. A merry-go-round comprising a base, a Yconcave bearing membersupportedy on the base, a convex bearing member supported in the concavemember, a part interposed `between said members for spacing one.' fromthe other, a convexo-concave bearing member operable between the firstnamed bearingvmembers, a seat board supported on'the last named bearingmember, a series of oppositely disposed cam surfaces arranged on theupper face of said convex member,y and a part Vsupported on theconvexe-concave.V

member having a plurality of cam vsurfaces arranged to coact with one orthe other of said oppositely disposed cam surfaces for effectingstep-by-step teetering ymovement v coincident with rotatable movement ineither direction of said board.

10. A merry-go-round comprising abase, a concave bearingmember'supported on said base, a convex bearing member supported in theconcave member,l a part interposed Ybetween said members for spacing onefrom the other, a convexo-'co'ncave bearing member operablel between thefirst named members anda seat board supported' on the last y 1,652,993 ng?,V

the other, a conVeXo-Concave bearing memof cam surfaces adapted to coactlwith the ber operable between the first named bearcam surfaces of Saidseries for effecting r0- ng members and a seat board supported ontatable and teeterng movement of said W the last named member, a seriesof cam surboard, and a ball bearing between said cam 5 faces arranged onthe upper face of said supporting members.

convex member, a part supported on the In testimony Where0f,IaX mysignature. convexe-concave' member-having a plurality s JOSEPH P. NEFF.

